Improvement in adjustable harrow



` anni 'sans .roHN KINHART, or

ATHENS, ILLINOIS.`

Letters Para: No. 94,964, ma september 21, 1869.

Meg-

IMPROVEMENT IN ADJUSTABLE HARROW.

The Schedule referred-to in these Letters Patent and ,making pa': of the same To all .whom t may concern:

,-adaptedro workf cnf stonyground,`and that maybe readily adjusted to different widths.

It consists of four equal sides, A A', B B', madeof timber of 'any desired size, A A being limited by a hinge, a, and B B' by asimilar hinge, b, the pivot of the hinge a being the tine c, secured in' its place by a nut, d.

On the ends of A A are hooks, e e', and Y'on B B' are rings g g', for the reception of the hooks.

At the apex of B B' is a guiding-yoke, D, attached to B B by bolts and nuts, as seen, and through the four sides, are inserted tines, 1, 2, 3, 8vo., in the usual manuel'.

A cross -bar, E, having eyesin its end, for the receptionzof screw-bolts t t', o n the end of A A', connects these sides, being held in place on the bolts by nuts. This bar is made of two parts, h h', figs. A1, 2, 3, h being slotted and bent. at one en'd, so as to form arguide', k,- for the reception of the end of h, which has a threaded pin, fm, on its extremity, as see 0n the pin mi is, placed a clasp, o, and then by means of a uut the pin is held at any pointin the length of Athe slot desired. This clasp o does not encircle the -part h', but. only `fits over'the edges, as shown, enough to prevent 'h' l from being drawn through k, except when desired,

` By means of the connecting-bar E the barrow may be made to cover a narrow or wide space at pleasure.'

When harrowing corn, the front tooth c' maybe removed and an ordinary bolt inserted, while, by means of the yoke-guid e, the rear tines may be prevented from doing any injury. 1f the barrow becomes clogged it can be easily" freed `by means of the handle, either-by pressing on -one side or the other, or raising the 'end up. When the end of the furrow is reached, by simply pressing on the yoke the barrow may bethrown on one side, when it can be easily turned almost short on' the angular projection, which Vbecomes a pivot for thispurpose.

In' harrowing 'ridg'y'iand the parts of the'lu'urotv` will rise -and fall with the inequalities. When the barrow is to be transported it may be taken apart and folded up, all the nuts being made with projections, by which they may be turned, so as to do avtay with the necessity of a wrench.'

By simply detachiug the parts B B', We have a single barrow suited for one horse, and having the advantage over the ordinary barrow of being adjustable.

I do-not, of course, claim to be the inventor ofan adjustable barrow, or of a rectangular or square balf row made of four parts, united by hinges and bolts; but

What I do claim asmy invention, and desire to secure by Letters Patent, is

1. An adjustable harrow,'consisting of two parts, A A', united by a hinge and connected Vby a rod, E, when constructed and arranged substantially as and for the purpose shown and speoiiied. 2. A double adjustable barrow, composed of the, devices above specified, and the parts B B', with4 the shown and specified.

Witnesses:

' T. BARFIELD, v,

W.' S.VWAGeonim.

JOHN KINHART. 

